Answer: [tex]||q_{A}||=5[/tex], [tex]||q_{B}||= 3[/tex], [tex]||q_{C}|| = 0[/tex].
Step-by-step explanation:
The magnitude is an absolute value by definition. Hence, each element has the respective value:
[tex]||q_{A}|| = 5\\||q_{B}|| = 3\\||q_{C}|| = 0\\[/tex]